The Eminence Commonwealth 12" Guitar Speaker delivers warm and rich tone that is very clean and well-defined. This Eminence speaker has a very full and smooth presence. Very little cone break-up, but likes Overdrive. Clean, warm, full, non-distorted, unadulterated guitar tone for all genres.
Protect Your Gear
Accidental damage, normalNormal wear and power surges are no longer an issue with these comprehensive and affordable plans. We even pay to ship your gear for repairs. More details.
Covers much more than the original manufacturer's warranty:
Limit of Liability: The least of the cost of (1) authorized repairs, (2) replacement with a product of similar features, (3) reimbursement for authorized repairs or replacement or (4) the price that you paid for the product.
*Limitations and exclusions apply. See terms and conditions for program details
Eminence Commonwealth 12" 225W Guitar Speaker Features:
- Voice Coil Diameter: 4", 101.6mm
Magnet Weight: 109 oz.
Power Rating.: 225W
Eminence Commonwealth 12" 225W Guitar Speaker Specifications:
Nominal Basket Diameter: 12", 304.8mm
Nominal Impedance*: 8 ohms
Power Rating**: 225W
Usable Frequency Range: 50Hz-4kHz
Magnet Weight: 109 oz.
Gap Height: 0.29", 7.2mm
Voice Coil Diameter: 4", 101.6mm
Thiele & Small Parameters
Resonant Frequency (fs): 50Hz
DC Resistance (Re): 6.34
Coil Inductance (Le): 0.46mH
Mechanical Q (Qms): 6.61
Electromagnetic Q (Qes): 0.35
Total Q (Qts): 0.33
Compliance Equivalent Volume (Vas): 90 liters / 3.2 cu. ft.
Peak Diaphragm Displacement Volume (Vd): 36cc
Mechanical Compliance of Suspension (Cms): 0.24mm/N
BL Product (BL): 15.7 T-M
Diaphragm Mass inc. Airload (Mms): 43 grams
Efficiency Bandwidth Product (EBP): 143
Maximum Linear Excursion (Xmax): 0.7mm
Surface Area of Cone (Sd): 519.5 cm2
Recommended Enclosure Volume:
Overall Diameter: 12.28", 312.0mm
Baffle Hole Diameter: 11.08", 281.3mm
Front Sealing Gasket: fitted as standard
Rear Sealing Gasket:
Mounting Holes Diameter: 0.27", 6.8mm
Mounting Holes B.C.D.: 11.69", 297.0mm
Depth: 5", 127mm
Net Weight: 21.5 lbs., 9.8 kg
Shipping Weight: 23.2 lbs., 10.5 kg
Materials of Construction
Aluminum voice coil
Die-cast aluminum basket
Cloth cone edge
Aluminum dust cap
*Please inquire about alternative impedances.
**Multiple units exceed published rating evaluated under EIA 426A noise source and test standard while in a free-air, non-temperature controlled environment.
***The average output across the usable frequency range when applying 1W/1M into the nominal impedance. Ie: 2.83V/8ohms, 4V/16ohms.
Eminence response curves are measured under the following conditions: All speakers are tested at 1w/1m using a variety of test set-ups for the appropriate impedance | LMS using 0.25" supplied microphone (software
calibrated) mounted 1m from wall/baffle | 2ft. X 2ft. baffle is built into the wall with the speaker mounted flush against a steel ring for minimum diffraction | Hafler P1500 Trans-Nova amplifier | 2700 cu.ft. chamber with
fiberglass on all six surfaces (three with custom-made wedges)
Eminence Commonwealth 12" 225W Guitar Speaker
7 year parts and labor warranty against defects on all speakers sold under Eminence name.
Get your gear covered!
Now you can get added warranty protection for your new gear. Pro Coverage steps in where the manufacturer's "normal wear and tear" ends. Our PRO COVERAGE program offers you UPGRADED COVERAGE if your product ever fails!
Pro Coverage includes:
- Accidental damage protection (new gear only)
- Expedited Repair
- Free Shipping (for returns or repairs)
- 100% Coverage for Commercial Use
- Extended Return Period
- Extended Price Protection
- No Lemon Guarantee
- Free Transfer of Coverage to a new owner
- Repair Costs Covered for up to 3 years from date of purchase
- Repairs Can Be Authorized Toll-Free by Phone or the via the web
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